public ShadowRootElement(HtmlDocument owner, int prefix, int localNameIndex)
     : base(owner, prefix, localNameIndex)
 {
     shadowDoc = new HtmlShadowDocument(owner);
     shadowDoc.SetDomUpdateHandler(owner.DomUpdateHandler);
 }
 public ShadowRootElement(HtmlDocument owner, int prefix, int localNameIndex)
     : base(owner, prefix, localNameIndex)
 {
     shadowDoc = new HtmlShadowDocument(owner);
     shadowDoc.SetDomUpdateHandler(owner.DomUpdateHandler);
 }